NPPES file of Aug 9, 2026

Kathylynn C. Pietak, M.D.

Internal Medicine Physician · Amherst, NY

Kathylynn C. Pietak, M.D. is an internal medicine physician with a practice address in Amherst, New York, and NPI 1326013723, issued on Feb 20, 2006. Check the license (New York 200533, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1326013723
Name
Kathylynn C. Pietak
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
200533 NY
Self-reported in NPPES; status is on the state search
Practice location
6000 N Bailey Ave, Amherst, NY 14226
Phone
(716) 834-4266
Enumerated
Feb 20, 2006
Record last updated
Jul 21, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(716) 834-6255
Medicaid ID
01970263 NY
Medicare enrollment
Enrolled (PECOS I20100127000347); accepts Medicare assignment
Medical or professional school
State University Of New York At Buffalo School Of Medicine, 1991
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 6000 N Bailey Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Mildred Caruana, RNRegistered Nurse1467507848
  2. Constance Greene, MDPediatrics Physician1942377486
  3. David Hartman, M.D.Internal Medicine Physician1790775575
  4. Mark Klocke, M.D.Pediatrics Physician1104816065
  5. Laila Schwinge, FNPFamily Nurse Practitioner1962469700
  6. Steven Stone, M.D.Family Medicine Physician1629068408

Verify Kathylynn C. Pietak in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
    Search for license 200533
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the New York license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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96% more Medicare Part D claims than the average internal medicine physician in 2024

6,228 Medicare Part D claims for 490 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 61 claims were for opioids.

  1. Kathylynn Pietak6,228
  2. Specialty average3,176

Most prescribed

  1. Amlodipine Besylate458 claims
  2. Levothyroxine Sodium368 claims
  3. Rosuvastatin Calcium354 claims
  4. Atorvastatin Calcium307 claims
  5. Lisinopril242 claims
  6. Metoprolol Succinate225 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $95.26

5 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Kathylynn Pietak$95.26
  2. Specialty average$1,303.06

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Amherst Medical Associates, LLPAmherst, NY
  2. Legacy Healthcare Services IncFort Myers, FL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Kathylynn C. Pietak among 12,067 internal medicine physician records in New York

Kathylynn C. Pietak, M.D. is one of 12,067 internal medicine physician records with a practice address in New York. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 8% of them.

  • NPI issued2006 · 8% of these records are older, 53% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated1991 · median 2002 among the 7,221 with a school on file
  • Record last updated2014 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

36 internal medicine physician records list a practice address in Amherst

They are 36 of the 1,741 NPPES records with a practice address in Amherst, and 12,067 internal medicine physician records in New York.

The 8 internal medicine physician records with the nearest ZIP codes

  1. John Bauers, M.D.Amherst, NY 142261942297122
  2. Gabriel Cortes, D.O.Amherst, NY 142261073573101
  3. Joseph Gentile, MDAmherst, NY 142261487604955
  4. David Hartman, M.D.Amherst, NY 142261790775575
  5. Paul Kuritzky, M.D.Amherst, NY 142261336104694
  6. Shahera Noukla, MDAmherst, NY 142261659329803
  7. Elizabeth O Neill, M.D.Amherst, NY 142261346204377
  8. Irene Paulus, MBBSAmherst, NY 142261619933710

Common questions

What is Kathylynn C. Pietak, M.D.'s NPI number?

Kathylynn C. Pietak, M.D.'s National Provider Identifier (NPI) is 1326013723, issued on Feb 20, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Kathylynn C. Pietak, M.D. located?

The NPPES record lists a practice address at 6000 N Bailey Ave, Amherst, NY, 14226. Phone: (716) 834-4266. Providers update this record themselves, so call before visiting.

How can I verify Kathylynn C. Pietak, M.D.'s license?

NPPES lists New York license number 200533, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Kathylynn C. Pietak, M.D. prescribe under Medicare Part D?

In 2024, Kathylynn C. Pietak, M.D. had 6,228 Medicare Part D claims for 490 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.